Combined rifle grenade and hand grenade



F. N. BRUNDBY. COMBINED RIFLE GRENADE AND HAND GRENADE.

' APPLICATION FILED MAR. 2| i920.

Patented `May 16 lill. f

Fig. 4

11 l' Inven t or, FTI dl] of Niel s on Bronby.

@l-Hor neys `tir-rui which fits well in the hand.

E'RIDTJOF NELSEN BBONDBY', OLT CHBISTA-NIA, Vlil-035iJVTI., ASSIGNOR TO A/S PERKUSSION, DE CHRISTIANII, NORWAY.

eoiiiniiinn ninna ern-nimma Ann Hann enniinnn.

filed Application rlhis invention relates to grenades andthe ohjett of the invention is a grenade wliieh explodes upon striking, no matter inwhieh position it strikes. and which may aeeording to the circumstances b e used either as a hand grenade or asa rifle grenade, or it desired as the projectile of a bomb throwelr.

lily lgrenade possesses great advantage inA that. itdniay he shot from a ride by. means of ordinary rifle ammunition. it also satis- 'lies the other requirements of 4an ideal grenade. l

.ireording to my invention the `grenade oi'ifiinarily einboilies a central tube which permits passing ofthe-'rifle bullet without damaging the ignition iiieelianisin or the Charge of the grenade rThe ignition mechanism and charge :ire placed arounil the eeniii'al tube. Mij grenade is [.iiefeiiibl)Y` of a lt weighs about iiltl grams. Size, forni and weight may. however. be varied as desired. if the grenade is to be used only as a hand grenade the central tube is not necessary and may he omitted; and the construction of the ignition nieehiinisin may be Varied aeeordingly as will readily he iiniierstood by those skilled in the art. The grenade is absolutely safe dii-ring transp rt) and is providedj with means for inserting the detonato'rseparately.

in the illustra ,1re drawings which `forni a part of this applieation Figure l'isa longitudinal section of the grenade;

Fig. i2 is a similar section of the grenade in afdifferent plane from Fig, l illustrating;r the detonator;

Fig. 3 is a side elevation ofthe grenade showing in longitudinal section a easing and mounting used in oonneetion with firing from a rifle;

Fig. 4 is a side elevation of the grenade provided with the easing and.mountingillu-'sand renewed as appliea'tioiiv Epeeification of Letters Patent Patgntgd @tay 16, 1922,

iiiarcii 2,'1920. vsentii in, aeaeeaf vtrated 3 and showing the end of a rifle barrel;

Fig. .5 is .a longitudinal section broken away of the grenade showing a part of the easing Aandmountingr for use in connection with rifles and illustrating a modified arrangement ofuauXiliai/v propeller charge;

and i y Fig.' 6 isa longitudinal sect-ion of a-modi-u 'fieation of the grenade of Fig, 1 illustratingv the omission of the central tube therer i n Y i'iom and the detonator Centrally positioned .inthe grenade, as well as other modifications later to be referred to.

Referring more particularly to the o0n-` struction of'Figs. l andv 2 the central tube has slidablyinoiinted thereonfa Cylindrical body Llwhioh iswprovided at its forward end Vwith a flange 3 and is normally main-` f tained in a rearwardposition of safety by means of a suitably mounted spring 2. A detonating needle t is conveniently mounted on theforward face of the fla-nge .in a position on vforwardmoyement thereof to explode al percussion Cap 13 carried at the rear ofa removable detonator lei. The detonatoi` is Vintended to be placed inthe grenade `when the latter is to he launched andis thereafter maintained therein in en*V plosive relation with the charge l5 of the grenade. vThe' rear end of the cylindrical body is heyelled for engagement with the pointed end of a release safety pin l1 nornia-lliY held in engagement therewith byV means of a sleeve lprovided with ay suit able means for disengagement therefrom, sue-has a eoid. ll/'lien thus disengaged the pin will be moved outwardly on forward movement of the cylindrical body by the berelled end thereof.y thus ieleasingitlie latter for tiring movement.

5in actuating member 6 of conical form is mount-ed on the Cylindrical body l. The

forwardend of the aetuatingF member is proridetlwith a flange i' for eo-aetion with the flange 'S'oflthei eyli-ndrieal body. The rea-r portion of ther 'actuating member is prori'ded with va loose bea-ring on the cylindrical body,` `and the actuating member is Confstiuete'd and ymountedv in suoli manner that Ili y grenade.

lmounted thereon. and is normally maintained in cooperative relationl with the cylindrical body by means of a. spring interposed between -the weight and `the'base of the grenade, vwhich spring is normally not under compression.

, When the grenade is lto be launched from Va rifle it is provided with a metal casing 17 the forward end of which is penetrablel by the rile ball, and at the rear of which a suitable mounting is attached in line `With the central tube for fastening to `the `forward end of the rile barrel illustrated at 19 (see Figs. 3 and 4'). An auxiliary pro-k pelling charge ignita-ble by thepowder gases escaping from the muzzle of the riflev barrel may if desired be provided, and is illustrated as pressed into an annular groove 2O formed on the base of the grenade. Suitable `means are provided for disengaging the vsafety sleeve 12 from the` safety pin 11 'on launching the grenade from the rifle. My grenade will act in the following manner: Atthe moment when the grenade is i launched the sleeve 12 is removed by means of the cord. :As `my grenade is Vnot provided with a steering tail, it will turnin all directions duringits flight, and striking v maytake place in the following positions:

`(1) Point down, (2) base down, (3) `on i the side, (4t) in an intermediate position.

lIn the Qfirst case the impact ofk the annular weight 9 will act on the actuating member 6, further on the steel balls 8 'and the flange 3 and finally on the detonating needle 4, which will be pressed into the percussion'cap 13. Thereby the detonator 14 isignited vandconsequently the charge V y will explode.

'Inthe second case theinipact ofV theaunular-weight will compress the spring 10,

which on recoiling will hurl the weight back, and ignition and explosion will take place as in `the rst case.

In the third case,V by `side striking, the

annular. weight `will `together with the. ac-

tuating member act as a pendulumr and swing to one side, the flange 7 moving inv a generally transverse direction. The steel balls togetherl with the curved recesses in ywhich they are placed will theni act as a wedge and displace the cylindrical bodyr in longitudinal ydirection in ,such manner that i .the detonating needle is pressed into the percussion cap with resulting explosion of the In the fourth case, the grenade striking in ,an lintermediate position, a combination of the above described actions will take place,`

and cause explosion of the grenade.

When the grenade is to bef launched. from a rifle and is provided with the casing as above described, it is placed upon the forward end 'of the rifle barrel andthe rifle y fired. muzzle `of the rifle barrel .project the gre- The powder gases escaping from the nade in the direction of firing andeause the same to burst through the forward endet the casing. In addition the `escap"ng charge heretofore referred to as being located in the groove 20, which of coursemcreases the proJecting effort on the' grenade.

It Ais estimated that .the shooting `range ofl the grenade may be increased to 400 meters in `casethe said propelling charge is employed. The explosion of `the grenade will yobviously take placein the Vsameumanner as above described.` Y

It ,is v not thought necessaryto dwell at length upon the modifications of the grenade illustrated in Figs. 5 and 6. In Fig. 5 the auxiliary propelling charge instead of being located in an annular groove is shown as carried by a hollow cylinder 21. InF 1g.` 6

-powder gases ignite the auxiliary propelling i the `intermediate, linkfcomprising thel balls ,p

8, 8 of Fig. 1 is omitted'and the flanges 3 and 7 are conical in a direction toward the Furthermore )in '95 base of the grenade, thelcone of theliange 3 `being slightly lmorefobtuse than that ofthe flange 'Z and the flanges normally `being in i contact one with the other.

Fig. 6 the central tube of Fig. 1 is omitted and is replaced bythe tube carrying the re movable detonator 14. This being ,centrally located, the detonating'needle is accordingly mounted at the center of the flange 3.

The foregoing detailed description of my linvention has been given for clear-ness of uny derstanding, and ,y no undue Vlimitation should be deducted therefronLbut the appendedclaims should be construed as broadly as permissible in viewof the prior art.`

It ywill benoted that I have in my priciapplication Seiz No. 269,164, filed December 31, 1,918, disclosed and claimedffiringmeclianism suitable for use in a grenade,` enibodying a weighted actuating member-and a firing member AWitha driving connection between the two comprising enlarged heads, the actuating member being vmounted for ,swinging movement, and` afiiringV spring holding the actuating member'towards `the firing member.

` What I claim` as new anddesire to secur by Letters Patent of the United States is: 5

1. `In a grenade, the combination of a sliding firing member provided at one yend with fa flange, and an actuating Ymember `therefor comprising al bodyrportion loosely 'surround-` ing and capable of transverse movement in respect to the firingmember and having a flange co-acting with the angelon the firing liio liso

une

member on ring7 whereby a transverse movement of the flange on the actuating member effects longitudinal movement of the firing member'.

2. ln a grenade. the combination vvith a detonator of a sliding firing member therefor comprising a body portion provided at one end with flange, an actuating memberl therefor having a body portion loosely surrounding and longitudinally and transversely movable on the body portion of' the firing member and having the flange coacti-ng in the firing with the flange of the tiring member whereby a transverse movement of the flange on the actuating member effects a longitudinal movement of the liring member, a Weight surrounding the actuating member, a spring normally holding the weight tovva-rd the flange of the last named member and a spring normally holding the firing member -avvay from the detonator. y

3. ln a grenade, the combination of a central tube, a tiring mechanism comprising a cylindrical body longitudinally slidable on said tube and provided at one end with a flange, and a Weighted actuating member therefor having a flange surrounding the tube and` capable of transverse movement in respect to the tube and co-acting in the. firing with the flange on the cylindrical body7 whereby a transverse movement of the fl( nge effects a longitudinal movement of the cylindrical body, substantially as descri-bed.

4E. In a grenade, the combination of a central tube, a firing mechanism comprising a cylindrical body longitudinally slidable on said tube and provided at one end with a flange, an actuating member therefor also slida-ble on the tube and having a flange capable of transverse movement in respect to the tube and co-acting in the firing with the flange on the cylindrical body whereby a transverse movement of the flange effects a longitudinal movement of the cylindrical body, a Weight slidable on the actuating member., and a spring normally pressing the Weight towards the flange on the cylindrical body substantially as describd.

5, In a grenade, the combination of a slidable cylindrical body provided with a fla ge'n a conical actuating member surrounding the cylindrical body and longitudinally and transversely movable in respect thereto, the actuating member being also provided with aI flangel` and means for transferring a swinging movement of the actuating member to a longitudinal movement of the cylindrical body.

6. In a grenade, the combination of a central tube throughout the length of the grenade, a cylindrical body slidable on said tube and provided With a flange, a conical actuating member outside the cylindrical body longitudinally and transversely movable in recpect thereto. the actuating member being also provided with a flangen an annular Weight. on the. actuating memben spring holding the Weight tight on' the actuatii member, and means for transferring swinging movement of the actuating member to a longitudinal movement of the cylindrical body.

7, In a greneule` the combination of a central tube throughout the length of the 'enade.` a cylindrical body slidable on said tube and provided with a flange, a swinging and sliding conical actuating member outside said cylindrical body also provided ivith a flange, an annular Weight on the actuating member, a spring holding the vveigbt tight on the actuatingmember. the respectivo flanges being provided .vith oppositely disposed recessesr` and balls located in the f recessesy the flange on the actuating member and the balls acting as a Wedge en a su ing movement of the actuating member and transferring said movement to a longitudinal movement of' the cylindrical body.

8. ln a grenade, the combination of a central tube throughout the length of the grenade. a cylindrical body sli'dable on said tube and provided with a a springr for normally maintaining the cylindrical body in a position or safety, a detonating needle operatively associated vvith the cylindrical bodyi a swinging sliding conical actnating member outside said cylindrical body also provided With a flange` the respective flanges being provided with oppositely dispo ed recesses. balls located in thc said reces ,c y the Flange on the actuating member and the balls` acting as a Wedge on a swinging of the sarl actuating member and trans te i n the said movement to a Longitudinal movement of the cylindrical body and the detonating neez'llc. au annular Weight ou the said actuating member. and a spring normally not under compression tor normally holding the said Weight in position tight to the actuating member.

In grenade. the combination of a central tube throughout the length the grenade7 a cylindrical body slidable on said tube .nd provided vvith a flange a spring t -ally maintainingthe cylindrical body in a position of safety. a detona l eratively associated ivith the cylindrical bcdy` a conical swinging and sliding actuating member outside said cylimlrical body also provided with a flange, the respective flanges being provided With. oppositely disposed recesses, balls located in the said recesses, the flange on thc actua-ting member andthe balls acting as a Wedge on a swinging movement of the actuating member and transferring the said movement to a longitudinal movement or" the cylindrical body and the detonating needle, an annular edle op-.

Weight on the said actuating member, a springnormally not under compression for normally holding the said. Weight in position tight to the actuating member, a pointed safety pin pressed against a bevelled edge on thevcyliiidrical body, and a removable plate -foi-normally maintaining the said Contact.

10. ln a grenade, the combination of a central tube throughout the length of the grenade, a cylindricalbody slidable n said tube and provided with a flange, a spring for normally maintaining the cylindrical body in a position of safety, a detonating needle operatively associated -With the cylindrical body, a conical swinging and sliding actuating member outside said cylindrical body also provided with a flange, the respective flanges being provided with oppositely disposed recesses, balls locatedv in `the said recesses, the ange on the actuating member and the balls acting as a Wedge on a swinging movement of the actuating meniber and transferring the said' movement to a longitudinal movement ofthe cylindrical body and the detonating needle,` an annular Weight on the said actuating member, a spring normally not under compression for normally lioldingthe said Weight in position tight to the actuating member, apointed safety pin pressed against a bevelled edge on the cylindrical body, a removable plate for normally maintaining the said Contact,

`a percussion cap in proximity to the detonating needle, a detonator in. proximity to the percussioncap, and an explosive charge in proximity to said detonator.

l1. In a grenade, the combination of a central tube throughoutrtlie length of the grenade, a cylindrical body slidable on said tube and provided with a liange, a spring for normally maintaining tbe cylindrical body in a position forsafety, a detonating needle operatively associated with the cylindrical body, a conical swinging` and sliding actuating member outside said cylindrical body also provided with a flange, the respective flanges being provided with oppositely disposed recesses, Vballs located inthe said recesses, the flange on theactuating member and the balls acting as a wedge on a swinging movement of the actuating member and transferring the said movement to a longitudinal movement ot lthecylindrical body and the detonating needle, an annular Weight on the said actuating member, a spring nor-` mally not under compression for normally holding the said weight in vposition tight to tlie actuating member, a pointed safety pin pressed against a bevelled'edgeon the cylindrical body, a removable` plate for vnormally maintaining the said contact, a percussion cap in proximity to the detonating needle, a detonator in proximity to the percussioncap, an explosive charge" in proXim-,i ity to said detonator, anda vcasingnfor the grenade provided with means for attachment to a rifle barrel. Y l

Vl2. In agreii'ade, the combination of a cen-si tral tube throughout the length of `the `gre` nado, a cylindrical body slidable onsaid tube and provided with a flange, a spring for? ing member outside said cylindrical body` also provided With a flange, the respective llanges beingprovided With oppositely di`s-y posed recesses, ballslocated in the said recesses, the flange on the"actuat1ng`member vand the balls acting as a'tvedge oir a sWinging movement of the actuating member and transferring the saidmoveinent to ar longitudinal movement oi the cylindrical Vbody and the detonating needle, an annular Weight on the said `actuating member, a spring 'normally not under compression for normally holding tlie said'iveiglit in position tight to the actuating member, a pointedsafetytpin pressedagainst a bevelled ed gcon the cylindrical body,fa removable plate. for normally maintaining vthe said contact, afpercussion cap in proximity tothe detonating needle, a detonator in proximity vtothe percussion cap, an explosive charge `1n proximity to said'detn onator, a casing for thegrenade with means tor attachment to a rillelbarrel,4 andV an auX-` iliary propelling charge carried bythecasmg.

4Signed at Christie-nia, Norivay,"this lthv day of January, 1920.' Y y y y Y y Eli-IDTJF NIELSEN BlONDBY.y 

